/*搜索框样式*/
#demo {
    width: 750px;
    margin: 0 auto;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -200px;
    margin-left: -375px;
    text-align: center;
}
.demo-img img{
    width: 270px;
    height: 129px;
}
.wrapper{
    width: 100%;
    position: relative;
}
.wrapper-small{
    float: left;
    width: 650px;
}
.bantxt {
    width: 700px;
    height: 45px;
    opacity: 1;
    border: 1px solid #b8b8b8;
    border-right: none;
    border-radius: 5px;
    padding-left: 50px;
    color: #000;
    outline: none;
    background: url(../images/search1.png) no-repeat 15px center #fff;
}
.wrapper input::-webkit-input-placeholder{
    color: #b8b8b8;
}
.banbutt {
    height: 48px;
    width: 140px;
    background-color: #38f;
    border: 0px;
    color: #fff;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    font-size: 16px;
    position: absolute;
    top: 0;
    right: 0px;
    outline: none;
    cursor: pointer;
}
.demo-small-img img{
    width: 100px;
    height: 38px;
    float: left;
}
.wrapper-small .bantxt {
    width: 600px;
    height: 35px;
}
.wrapper-small .banbutt{
    height: 38px;
}
